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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAX629C/D датащи(PDF) 3 Page - Maxim Integrated Products |
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MAX629C/D датащи(HTML) 3 Page - Maxim Integrated Products |
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3 / 12 page  28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = +5V, CREF = 0.1µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) Note 1: Specifications to -40°C are guaranteed by design and not production tested. Note 2: The IC itself requires a supply voltage between +2.7V and +5.5V; however, the voltage that supplies power to the inductor can vary from 0.8V to 28V, depending on circuit operating conditions. Note 3: For reference currents less than 10µA, a 0.1µF reference-bypass capacitor is adequate. Circuit of Figure 2, VOUT = 24V, VCC = 3V to 5.5V, ILOAD = 5mA %/V 0.2 Line Regulation Die temperature °C 150 IREF = 0µA to 100µA, CREF = 0.47µF (Note 3) Thermal Shutdown Threshold Circuit of Figure 2, VOUT = 24V, VCC = 5V, ILOAD = 0mA to 5mA % 0.15 Load Regulation CONDITIONS mV 10 25 REF Load Regulation UNITS MIN TYP MAX PARAMETER __________________________________________Typical Operating Characteristics (SHDN = VCC , CREF = 0.1µF, TA = +25°C, unless otherwise noted.) 100 60 0.1 100 EFFICIENCY vs. LOAD CURRENT (VOUT = +24V) 65 70 95 90 85 LOAD CURRENT (mA) 1 10 80 75 D D: VIN = 5V, ISET = GND E: VIN = 3V, ISET = VCC F: VIN = 3V, ISET = GND VOUT = 24V A: VIN = 12V, ISET = VCC B: VIN = 12V, ISET = GND C: VIN = 5V, ISET = VCC E, F C B A 100 60 0.1 100 EFFICIENCY vs. LOAD CURRENT (VOUT = +12V) 70 65 95 85 90 LOAD CURRENT (mA) 1 10 80 75 C B A VOUT = 12V, ISET = VCC or GND A: VIN = 9V B: VIN = 5V C: VIN = 3V 300 0 0 20 MAXIMUM LOAD CURRENT vs. INPUT VOLTAGE (VOUT = +24V, +12V) 50 250 200 INPUT VOLTAGE (V) 8 12 4 16 150 100 A B C D A: VOUT = 12V, ISET = VCC B: VOUT = 12V, ISET = GND C: VOUT =24V, ISET = VCC D: VOUT = 24V, ISET = GND 100 50 0.1 100 EFFICIENCY vs. LOAD CURRENT (VOUT = -18V) 65 60 55 95 80 85 90 LOAD CURRENT (mA) 1 10 75 70 C A A: VIN = 12V, ISET = VCC B: VIN = 12V, ISET = GND C: VIN = 5V, ISET = VCC or GND D: VIN = 3V, ISET = VCC or GND B D 100 50 0.1 100 EFFICIENCY vs. LOAD CURRENT (VOUT = -12V) 65 60 55 95 80 85 90 LOAD CURRENT (mA) 1 10 75 70 A A = VIN = 5V, ISET = VCC B = VIN = 5V, ISET = GND C = VIN = 3V, ISET = VCC D = VIN = 3V, ISET = GND D B, C 90 0 0 20 MAXIMUM LOAD CURRENT vs. INPUT VOLTAGE (VOUT = -18V, -12V) 30 20 10 80 60 70 INPUT VOLTAGE (V) 4 8 12 16 50 40 C A A: VOUT = -12V, ISET = VCC B: VOUT = -18V, ISET = VCC C: VOUT = -12V, ISET = GND D: VOUT = -18V, ISET = GND D B |
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